peters



2 Sheets-Sheet 2. Ml Cl Cooking Range.

Patented Sept. 3, 1867.

Wifi/fesses:

In u e 'ril'or Mw@ N, PsTERs. PMOTOMTHOGRAPHER, wAsmNaToN, D. C.

niteh 'gratas gamut @ffice MAURICE o. HULL, -oF NEW YORK, N. Y.

Letters Patent No. 68,366, dated September 3, 1867.

COOKING-RANGE. t

"dlgs dgehule tratta tu im time trttas rteut mit mating pitt nf the same.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, MAURICE C. HULL, of the city and State of NewYork, have invented, made, and applied to use a certain new and useful improvement in Cooking-Ranges; and I do hereby declare the following to be a full, clear, and exact description of the said invention, reference being had to the annexed drawing, making part of this specication, wherein- Figure l is a vertical section longitudinally of the range at the line :r x of.

Figure 2, which is a vertical section transversely of the range at the line y y.

Figure'3 is a vertical section of the body of the range at the line z z.

Figure 4 is a sectional plan at the line v v.

Figure 5 is a sectional plan at the line w w, andq Figure 6 is a sectional plan of the smoke and air-ues above the register.

Similar' marks of reference denote the same parts.

My invention relates to that class ofranges in which the surplus heat may be used for heating rooms above the range, and in which the ovens are elevated above the main or body part of the range. Some features of my said invention may, however', beemployed in ranges or stoves that do not have elevated ovens.

The nature of my said invention consists in n range having an elevated oven, the re being in the lower part, and the products of combustion passing through descending fines so as to facilitato the heating of articles that may be placed directly upon the top of the range, and also effecting a great saving of fuel. The products of combustion are directed upon the elevated oven, and means are providedA for preventing the elevated ovens becoming chilled. And I provide a peculiar air-heating space that heats a current of air passing through the lower part of the range to a room above. This last feature may be employed in ranges or stoves that do not have an elevated oven.

In the drawing, a a are the side plates, al the front plate, ai' the back plate, and the top plate of the body or lower part of the range. This top plate is provided with holes for the reception of pots as usual. c is thc ire-pot and grate, and d is the water-back, of any desired character. b is the top ilue plate; e the ue. e e are descending ues to the bottom 4fluef, and the products of combustion pass away, by the ascending dues g, to the due n. Dampers g are provided in the ue eand when open allow a direct draught to the flue n in kindling or when the elevated ovens are in use. By providing4 the descending lues e a plenum of heat is maintained beneath the top plate of the range, which insures greater eiciency in heating said plate and effecting cooking thereon than in the elevated oven ranges heretofore constructed without descending lues, and at the same time a saving of fuel is effected, as the heat does not pass oft' so directly to the chimney. Between the descending lue plate t and the tire-pot is an air-heating chamber t, into which air is admitted and becomes heated by contact with the tire-pot, and ash-pit and by the heat in the ues e e andy g, and the air passes oii` bythe risingair pipe 7c'. The air may be admitted towards the front of the air-chamber t through the pipes z't', and I have shown horizontal divisions Z Z to direct the air into contact with the fire-pot and ash-pit in its passage through the chamber, or vertical plates m m may be employed for the same purpose, theair passing over one and below the next, and` thereby being detained and deflected into contact with the tire-pot. I also make use of vertical plates Z, (see g. 5,) to cause the air to circulate in contact with the back ofthe re-pot before passing away by the pipe Ic. These plates may be perforated to allow some of the air to pass into the air-space behind them and in contact with the ilues g. The smoke lue n is on one or more sides of the rising-air pipe 7c, and opens into the casing n of the elevated ovens o o. I prefer that this casing n be made of cast-iron plates, and the ovens o o of wrought-iron sheets. The products of combustion circulate around the ovens o o', through the dues 2 2, 3 3, and 4 4, and go away by suitable pipes at p. I make use of a damper at 5 when it is desired to have all the heat pass under one oven. The top plate 6 over the iiues 4 is made double so as to have a space, 7, into which plaster, ashes, or other non-conducting material may be introduced to prevent the loss of heat by radiation from the top plate over the oven, and I prefer that this plate bc deflected downwards, as seen in fig. l, so as to cause the heat to impinge upon the top of the ovens, and increase their eliciency. The space between the lower edge of the deecting plate and the top of the oven may be greater at the front than at the back of the oven, so as to equalize the action of the heat on the oveni Around the oven-fines 3 3, I form an air-space,

eases 2 r, by metal plates hanging from the top plate 6, or by extending said top plate to the surrounding brickswork; this retains the heat that rises from the top of the range, and insures greater eiiiciency in the ovens by preventing radiation from the iiues surrounding them. The air-space r may also extend around the back of theovens, as seen in iig. 2.. By extending the pipe 7c to the bottom iiuef, and connecting the pipes n with the air-chamber h', the heated air might pass around the smoke iine instead of through the same, and the air-heating space around the {ire-pot, and also the iiues 7c and 'n n, fitted as set forth, may be employedin a range or stove having ovens in the body of the range, instead of being elevated. The air from the pipe 7c passes into the case s, and within this case thetwo smoke lues s1 -unite into one pipe, s2, that extends up through the hotair pipe, and thence is conveyed in any desired manner to a chimney, and the hot air is conducted to the room. In order to close the hot-air pipe in summer time, and prevent the heat passing to the rooms, I employ a double conical register, s4, formed with alternating openings in the respective truncated cones, which, having as much area in the aggregate as the section of the air pipe, form but little obstruction to the heated air, but when the register is closed by turning one coneupon the other, the heated air cannot. pass. I provide a pipe at si that may be opened to allow hot air to passaway whcn'the register is closed.

What I claim, and desire to secure by' Letters Patent, is-

1. In a range or stove provided with an elevated oven, I claim a descending iiue in the lower portion ofthe range, for the purpose and substantially as set forth.

2. Iclaim the arrangement of the air pipe k, smoke iiue n, and elevated ovens o o', injcombination with a 'range or stove having a descending iiue7 substantially as and for the purposes set forth.

3. I claim a conical register introduced in the hot-air iiue around the smoke i'lue, in the manner and for the purposes speeied.

4. I claim forming a chamber for non-conducting material above the top oven flue, for the purposes and as set forth.

5. I claim nclining the upper plate of the top oven ue soas to dcfiect the products of combustion down upon the top of the open, as set forth. p

6. I claim the air-fine 7c within the smoke iiue n, in combination with an air-heating range or stove, substantiallyv as set forth. v

In vwitness whereof I havehereunto set my signature this eighteenth day of March, -A. D` 1867.

I C. HULL.

W'itnesses:

CEAS. H. SMITH, GEO. D. WALKER. 

